let a = 23
let b = 32
const c = 34
export default c
let d
d = 3
// 隐式any
function aa(a: string, b: any) {

}
// 隐式this
function bb(this: Window) {
	console.log(this)
}
// 检查空值
const dom = document.getElementById('#name')
dom ? dom.addEventListener('click', () => {

}) : '';
let qaa: any[] = [1, 2, 3]
export { }